During an interview on ITV’s Lorraine, the conversation turned to tricky accents and Witherspoon reveals “Scottish is really…I was supposed to do…Oh no I don’t really want to talk about it!”

After some probing from co-star McConaughey and interviewer Ross King, Witherspoon spills: “I tried to do a Scottish accent once…It was bad, I had to quit the movie. It’s not my finest moment. I don’t want to talk about it anymore. That just came out and I really wish it hadn’t.”

While she didn’t state which film it was for, we have an inkling that it might be for the 2012 Pixar film Brave, which was set in the Scottish Highlands. Witherspoon was originally casted to voice Princess Merida but dropped out of the film and was replaced by Trainspotting's Kelly McDonald.